Russian Olive (Elaeagnus angustifolia) - How to Grow & Care Guide

Plant Snapshot

Common Name: Russian Olive
Latin Name: Elaeagnus angustifolia
Hardiness Zones: USDA zones 2–7. Colder zones cause greater dieback and slow growth while warmer zones can increase vigor and spread.
Typical Height: 15–30 ft (4.5–9 m) at maturity.
Typical Spread: 15–25 ft (4.5–7.5 m).
Bloom Period: Late spring in temperate climates, often May–June in the Northern Hemisphere.
Soil Preferences: Prefers well drained sites but tolerates dry, poor, alkaline and saline soils. Can grow in heavy clay if drainage is adequate.
Light Preferences: Full sun is best for flowering and fruiting but it tolerates light shade.
Toxicity: Fruit has been used as food but seeds are hard. The plant is not widely listed as highly toxic to pets but ingestion of large amounts may cause stomach upset. Verify with local poison control.
Propagation: Propagation by seed, by root suckers and by cuttings. Spreads easily by seed and suckering.

Key Facts

Small deciduous tree or large shrub typically forming a single trunk or multi stem clumps.
Fragrant small yellow tubular flowers appear in late spring.
Produces tart olive like fruits that have been used fresh or preserved.
Fixes nitrogen via root symbiosis which helps it tolerate poor soils.
Very drought tolerant once established.
Tolerant of alkaline and saline soils.
Spreads by seed and by root suckers and can become invasive outside its native range.
Useful as a windbreak or for stabilizing dry sites.

Russian Olive is a small deciduous tree or large shrub valued for fragrant yellow spring flowers and tart, olive like fruit used fresh or preserved. It fixes nitrogen and tolerates poor alkaline and saline soils, yet it spreads readily by seed and root suckers and can be invasive outside its native range.

Identification

Forms range from a single‑trunk small tree to multi‑stem clumps reaching about 15 to 30 feet tall with a 15 to 25 foot spread. In late spring it produces small fragrant yellow tubular flowers followed by tart olive like fruit that are eaten by people and wildlife. It also fixes nitrogen via root symbiosis.

Best uses and where to grow

Use Russian Olive as a windbreak or to stabilize dry, exposed sites where soils are poor or alkaline. It prefers full sun for best flowering and fruiting but tolerates light shade. Reported hardiness ranges from USDA zone 2 to 7, so check local extension for microclimate effects before planting.

Planting season and spacing

Planting season varies with climate but aim to give new trees time to establish before seasonal extremes. Space trees according to their mature spread, generally 15 to 25 feet apart for specimens or rows. Position plants where suckers and volunteer seedlings can be monitored to avoid unwanted thickets.

Watering and site care

Russian Olive is drought tolerant once established but needs regular watering during establishment. Choose a well drained site because poor drainage increases root stress. In dry, poor or saline soils the tree performs reliably, while overwatering or waterlogged soils can cause decline.

After flowering and fruit management

After late spring bloom the tree sets tart fruits that ripen later and attract wildlife. Fruits have been used fresh or preserved and contain hard seeds. Remove or harvest fruit if you want to reduce seed dispersal. Monitor for dense seedling recruitment and remove volunteers promptly to limit spread.

Controlling spread and invasiveness

Reproduces by seed and by root suckers and can become invasive outside its native range. Control young seedlings by pulling and mow or cut back suckers at the root collar. Check state or regional noxious weed lists before planting and consider physical barriers or routine sucker removal in managed landscapes.

Propagation

Propagate by seed, softwood cuttings or by managing root suckers for clonal expansion. Seed produces vigorous volunteer plants, so collect seed for deliberate propagation and remove unwanted seedlings. Cuttings or nursery stock allow more predictable form when planting as single specimen trees.

Frequently asked questions

How fast does Russian Olive grow?: Growth rate varies by site and climate. It can establish and spread relatively quickly in warm, dry conditions and may be slower with cold winter dieback. Local observations give the best estimate for your area.
Is Russian Olive invasive?: Yes in many regions. It spreads by seed and root suckers and can form dense stands that displace native plants. Check local invasive species lists before planting and manage seedlings and suckers promptly.
Are the fruits edible?: Yes the tart fruits have been used fresh or preserved and are eaten by wildlife. Fruits contain hard seeds and may be best processed before eating.
What soils does it tolerate?: It tolerates poor, dry, alkaline and saline soils and can grow in heavy clay if drainage is adequate. It prefers well drained sites for best long term health.
Is Russian Olive toxic to pets?: The plant is not widely listed as highly toxic but ingestion of large amounts could cause stomach upset. Verify current pet toxicity information with local poison control before advising pet owners.